KR20200055338A - crude oil production system which dual PID pressure control is applied - Google Patents

crude oil production system which dual PID pressure control is applied Download PDF

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KR20200055338A
KR20200055338A KR1020180138886A KR20180138886A KR20200055338A KR 20200055338 A KR20200055338 A KR 20200055338A KR 1020180138886 A KR1020180138886 A KR 1020180138886A KR 20180138886 A KR20180138886 A KR 20180138886A KR 20200055338 A KR20200055338 A KR 20200055338A
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pressure
crude oil
pressure control
vessel
value
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KR1020180138886A
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Korean (ko)
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KR102158914B1 (en
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이승엽
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현대중공업 주식회사
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34—Arrangements for separating materials produced by the well
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/08—Control of liquid pressure

Abstract

The present invention relates to a crude oil production system using dual PID pressure control, which uses dual PID pressure control so that pressure control is performed differently when a pressure value is greater than or equal to an operating pressure setting range value in separating produced crude oil into gas and liquid and treating the same and when the pressure value is less than or equal to the operating pressure setting range value, so as to enable optimal pressure control and minimize a rapid change in the pressure and the pressure pulsation according to rise and fall of the pressure due to a fast response speed of a pressure control valve when the pressure value falls below the operating pressure setting range value. The crude oil production system comprises: a gas treatment line and a liquid treatment line connected to a vessel to which the crude oil is supplied; a PT connected to the vessel to detect the internal pressure of the vessel; a PC electrically connected to the PT; a PCV provided in a combustion line connected to the gas treatment line in a branching form and electrically connected to the PC; and first and second PIDs, respectively set so that the response speed for the operation of the PCV is controlled differently according to the pressure value being above or below the operating pressure setting range value of the PC under the operating setting conditions.

Description

듀얼 PID 압력 제어를 적용한 원유생산시스템{crude oil production system which dual PID pressure control is applied}Crude oil production system which dual PID pressure control is applied}

본 발명은 듀얼 PID 압력 제어를 적용한 원유생산시스템에 관한 것으로, 더욱 상세하게는 생산된 원유를 기체와 액체로 분리하여 처리하는 과정에서 발생하는 운전 압력 설정 범위 값 이상인 경우에 대한 압력 제어와 이하인 경우에 대한 압력 제어를 서로 달리 제어할 수 있도록 듀얼 PID 압력 제어를 적용함으로써, 최적의 압력 제어가 가능함은 물론, 운전 압력 설정 범위 값 이하로 떨어질 경우 압력 제어 밸브의 빠른 응답속도로 인한 압력의 오르내림에 따른 급변화 및 압력 맥동을 최소화하고, 그에 따라 시스템에 대한 운전 안정화가 신속히 이루어질 수 있도록 한 것이다. The present invention relates to a crude oil production system to which dual PID pressure control is applied, and more specifically, a pressure control for a case where the operating crude oil is separated from a gas and a liquid and is set to a value higher than or equal to a set operating pressure value, and the case below By applying dual PID pressure control to control pressure control differently, it is possible to control pressure optimally, as well as to increase or decrease the pressure due to the quick response speed of the pressure control valve when it falls below the operating pressure setting range value. The rapid change and pressure pulsation are minimized, and accordingly, the operation of the system is stabilized quickly.

도 1은 종래기술에 따른 원유생산시스템을 나타낸 개념도로서, 간략히 설명하면 생산된 원유는 공급라인(10)을 통해 원유생산시스템의 베셀(12,vessel)로 공급된다. 상기 베셀(12)로 공급된 원유는 베셀(12)에서 기체와 액체로 분리되며 여기서 분리된 기체는 베셀(12)과 연결된 가스처리라인(14)으로 이송 처리되고, 액체는 액체처리라인(16)으로 이송 처리된다.1 is a conceptual diagram showing a crude oil production system according to the prior art, briefly described, the produced crude oil is supplied to a vessel 12 of a crude oil production system through a supply line 10. The crude oil supplied to the vessel 12 is separated from the vessel 12 into a gas and a liquid, and the separated gas is transferred to a gas treatment line 14 connected to the vessel 12, and the liquid is a liquid treatment line 16 ).

또한, 상기 베셀(12)은 베셀(12)의 내부 압력을 검출하는 PT(18)와 연결되어 있고, 상기 PT(18)는 PC(20)와 전기적 신호선(E1)으로 연결되어 있으며, 상기 PC(20)는 가스처리라인(14)으로부터 분기 형태로 연결된 연소라인(22)에 구비되어 있는 PCV(24)와 전기적 신호선(E2)으로 연결되어 있다. In addition, the vessel 12 is connected to the PT 18 that detects the internal pressure of the vessel 12, and the PT 18 is connected to the PC 20 by an electrical signal line E1, and the PC. (20) is a PCV (24) provided in the combustion line (22) connected in a branch form from the gas treatment line (14) and is connected to an electrical signal line (E2).

따라서, 상기 PT(18)에서 검출된 압력 수치에 따라 가스처리라인(14)으로부터 분기된 연소라인(22)의 PCV(24)에 대한 동작이 제어된다.Accordingly, the operation of the combustion line 22 branched from the gas treatment line 14 to the PCV 24 is controlled according to the pressure value detected by the PT 18.

예를 들면, 상기 베셀(12)의 내부 압력 증가가 운전 압력 설정 범위 값 이상, 즉 오버 압력인 경우, PCV(24)를 개방하여 가스처리라인(14)으로 흐르는 가스의 일부를 연소라인(22)으로 이송 및 연소시킴으로써 베셀(12)의 내부 압력을 해소하고 있다.For example, when the increase in the internal pressure of the vessel 12 is greater than or equal to the operating pressure set range value, that is, over pressure, the PCV 24 is opened to partially discharge the gas flowing into the gas treatment line 14 to the combustion line 22 ) To relieve the internal pressure of the vessel 12 by transferring and burning.

한편, 상기 베셀(12)에는 수위를 검출하는 LT(26)가 구비되어 있고, LT(26)는 LC(28)와 전기적 신호선(E3)로 연결되어 있으며, 상기 LC(28)는 액체처리라인(16)에 구비된 LCV(30)와 전기적 신호선(E4)으로 연결된다. 따라서, 상기 LT(26)에서 검출된 수위에 따라 액체처리라인(16)의 LCV(30)에 대한 동작이 제어된다.On the other hand, the vessel (12) is provided with an LT (26) for detecting the water level, the LT (26) is connected to the LC (28) and an electrical signal line (E3), the LC (28) is a liquid processing line It is connected to the LCV (30) provided in (16) and an electrical signal line (E4). Accordingly, the operation of the liquid processing line 16 for the LCV 30 is controlled according to the water level detected by the LT 26.

예를 들면, 상기 베셀(12)의 내부로 공급된 원유의 수위가 운전 수위 설정 범위 값 이하로 검출될 경우, LCV(30)를 폐쇄시켜 수위가 과도하게 낮아짐으로 해서 발생하는 문제를 방지하게 된다.For example, when the level of the crude oil supplied into the vessel 12 is detected to be less than or equal to the operating water level setting range, the LCV 30 is closed to prevent a problem caused by the water level being excessively lowered. .

위와 같은 원유생산시스템에서 PC(20)에 사전 입력된 운전 압력 설정 범위 값을 넘는 오버 압력인 경우, 압력 해소에 관여하는 PCV(24)의 동작 응답 속도가 빠르게 이루어질 수 있도록 게인 값을 설정한 PID(32) 제어를 통해 운전 압력이 시스템의 최대설계압력 혹은 시스템의 비상 정지가 요구되는 압력 설정 값을 초과하기 전에 가스처리라인(14)으로 흐르는 가스의 일부를 연소라인(22)으로 이송 및 연소시켜 그에 따라 시스템에 대한 운전 안정화가 신속히 이루어질 수 있도록 하고 있다. 오버 압력 시의 압력 상승 속도는 베셀(12)로 유입되는 원유의 양에 따라 가변적이며 특히 원유 이송 파이프 라인에서 유체의 슬러깅에 의해 유입 양이 급변 할 경우 압력 구배가 더욱 심하게 발생한다.In the case of an overpressure exceeding the operating pressure setting range value pre-entered in the PC 20 in the above crude oil production system, the PID setting the gain value so that the operation response speed of the PCV 24 involved in pressure relief can be achieved quickly. (32) Transferring and combusting a portion of the gas flowing into the gas treatment line (14) to the combustion line (22) before the operating pressure exceeds the maximum design pressure of the system or the pressure setting value required for emergency stop of the system through control. In order to stabilize the operation of the system accordingly, it is possible to quickly achieve. The rate of pressure rise during overpressure is variable depending on the amount of crude oil flowing into the vessel 12. In particular, a pressure gradient occurs more severely when the inflow amount is rapidly changed by slugging of the fluid in the crude oil delivery pipeline.

따라서, 운전 압력 상승으로 인한 시스템의 비상정지를 최소화하기 위해 상기 PID(32)의 게인 설정 값은 PCV(24)의 동작 응답 속도가 가급적 빠르게 이루어질 수 있도록 설정한다. Therefore, in order to minimize the emergency stop of the system due to the increase in the operating pressure, the gain setting value of the PID 32 is set so that the operation response speed of the PCV 24 can be made as fast as possible.

그런데, 운전 압력 설정 범위 값 기준 이하로 압력이 떨어질 경우, 예를 들어 압력 해소에 관여하는 PCV(24)의 동작 응답 속도가 빠르게 응답할 필요가 없음에도 오버 압력 경우와 동일하게 인식하여 PID(32) 제어에 의해 PCV(24)의 동작 응답 속도가 빠르게 이루어져 PVC(24)의 개도를 과도하게 빨리 줄여, 이로 인해 다시 압력 상승이 반복되는 압력의 오르내림에 따른 급변화 및 압력 맥동이 길어지게 되고 그에 따라 시스템의 운전에 대한 안정화에 많은 시간이 소요되는 문제가 있었다.By the way, when the pressure falls below the reference value of the operating pressure setting range, for example, even though the operation response speed of the PCV 24 involved in pressure relief does not need to respond quickly, it is recognized in the same manner as in the case of over pressure, and PID (32 ) By controlling, the operation response speed of the PCV 24 is rapidly reduced, and the opening degree of the PVC 24 is excessively reduced, which causes rapid change and pressure pulsation due to pressure rise and fall again. Therefore, there was a problem that it takes a lot of time to stabilize the operation of the system.

본 발명은 생산된 원유를 기체와 액체로 분리하여 처리하는 과정에서 발생하는 운전 압력 설정 범위 값 이상인 경우의 압력 제어와 이하인 경우의 압력 제어를 서로 달리 제어할 수 있도록 듀얼 PID 압력 제어를 적용함으로써, 최적의 압력 제어가 가능함은 물론, 특히 운전 압력 설정 범위 값 이하로 떨어질 경우 압력 제어 밸브의 빠른 응답속도로 인한 압력의 오르내림에 따른 급변화 및 압력 맥동을 최소화하고, 그에 따라 시스템에 대한 운전 안정화가 신속히 이루어질 수 있도록 한 듀얼 PID 압력 제어를 적용한 원유생산시스템을 제공하는데 목적이 있다.The present invention is to apply the dual PID pressure control so that the pressure control in the case of the operating pressure set range value or more and the pressure control in the case below are different from each other, which is generated in the process of separating and processing the produced crude oil into gas and liquid, Optimal pressure control is possible, as well as minimizes sudden changes and pressure pulsations due to pressure rise and fall due to the rapid response speed of the pressure control valve, especially when it falls below the operating pressure setting range value, thereby stabilizing operation of the system. The purpose is to provide a crude oil production system to which dual PID pressure control is applied so that it can be achieved quickly.

상기와 같은 목적을 달성하기 위하여 본 발명은 원유가 공급되는 베셀에 연결되는 가스처리라인 및 액체처리라인과; 상기 베셀의 내부 압력을 검출하도록 베셀과 연결되는 PT와; 상기 PT와 전기적 신호로 연결되는 PC와; 상기 가스처리라인으로부터 분기 형태로 연결된 연소라인에 구비되고 상기 PC와 전기적으로 신호 연결되는 PCV와; 운전 설정 조건에서 PC의 운전 압력 설정 범위 값 이상과 이하에 따라 PCV의 동작에 대한 응답 속도가 서로 다르게 제어되도록 각각 설정한 제1 및 제2 PID를 포함하여 구성되는 듀얼 PID 압력 제어를 적용한 원유생산시스템을 통해 목적을 달성할 수 있다.In order to achieve the above object, the present invention includes a gas treatment line and a liquid treatment line connected to a vessel to which crude oil is supplied; PT connected to the vessel to detect the internal pressure of the vessel; A PC connected to the PT via an electrical signal; A PCV provided on a combustion line connected in a branch form from the gas processing line and electrically connected to the PC; Crude oil production by applying dual PID pressure control including the first and second PIDs respectively set so that the response speed to the operation of the PCV is controlled differently according to the above and below the operating pressure setting range of the PC under the operating setting conditions. Through the system, you can achieve your goal.

또한, 본 발명은 운전 압력 설정 범위 값 이상인 경우, PCV의 동작 응답 속도가 빠르게 이루어지도록 셋팅한 제1 PID 제어를 통해 압력 제어가 이루어지도록 하고, 상기 운전 압력 설정 범위 값 이하인 경우, 상기 제1 PID 제어에 따른 PCV의 동작 응답 속도 보다 느리게 제어될 수 있도록 셋팅한 제2 PID의 제어를 통해 압력 제어가 이루어지도록 한 듀얼 PID 압력 제어를 적용한 원유생산시스템을 통해 목적을 달성할 수 있다.In addition, in the present invention, when the operating pressure is set to a value above the set range, the pressure is controlled through the first PID control set so that the operation response speed of the PCV is fast, and if the operating pressure is less than the set range, the first PID The objective can be achieved through a crude oil production system to which dual PID pressure control is applied so that pressure control is achieved through control of the second PID set so that the operation response speed of the PCV according to the control can be controlled more slowly.

이상에서 살펴본 바와 같이 본 발명은 운전 압력 설정 범위 값 이상인 경우의 압력 제어와 이하인 경우의 압력 제어를 서로 달리 제어할 수 있도록 듀얼 PID 압력 제어를 적용함으로써, 최적의 압력 제어가 가능함은 물론, 특히 운전 압력 설정 범위 값 이하로 떨어질 경우 압력 제어 밸브의 빠른 응답속도로 인한 압력의 오르내림에 따른 급변화 및 압력 맥동을 최소화할 수 있는 효과 및 시스템에 대한 운전 안정화가 신속히 이루어질 수 있는 효과를 기대할 수 있다.As described above, the present invention applies dual PID pressure control so that the pressure control in the case of the operating pressure setting range value or more and the pressure control in the case of the following conditions can be controlled differently, the optimum pressure control is possible, as well as the operation in particular. When it falls below the pressure setting range value, it is expected that the effect of minimizing the sudden change and pressure pulsation due to the rise and fall of the pressure due to the quick response speed of the pressure control valve and the effect that the operation stabilization of the system can be quickly achieved.

도 1은 일반적인 원유생산시스템의 압력 제어 방법을 설명하기 위한 개념도이다.
도 2는 본 발명에 따른 듀얼 PID 압력 제어를 적용한 원유생산시스템을 설명하기 위한 개념도이다. 1 is a conceptual diagram for explaining a pressure control method of a general crude oil production system.
2 is a conceptual diagram for explaining a crude oil production system to which a dual PID pressure control according to the present invention is applied.

이하 첨부된 도면을 참조로 본 발명에 따른 듀얼 PID 압력 제어를 적용한 원유생산시스템에 대한 바람직한 실시 예를 상세히 설명한다.Hereinafter, a preferred embodiment of a crude oil production system to which a dual PID pressure control according to the present invention is applied will be described in detail with reference to the accompanying drawings.

도 2에서는 본 발명에 따른 듀얼 PID 압력 제어를 적용한 원유생산시스템을 설명하기 위한 개념도가 도시되어 있다.2 is a conceptual diagram illustrating a crude oil production system to which dual PID pressure control according to the present invention is applied.

간략히 설명하면 생산된 원유는 공급라인(10)을 통해 원유생산시스템의 베셀(12, vessel)로 공급된다. 상기 베셀(12)로 공급된 원유는 베셀(12)에서 기체와 액체로 분리되며 여기서 분리된 기체는 베셀(12)과 연결된 가스처리라인(14)으로 이송 처리되고, 액체는 액체처리라인(16)으로 이송 처리된다.Briefly, the produced crude oil is supplied to a vessel 12 of a crude oil production system through a supply line 10. The crude oil supplied to the vessel 12 is separated from the vessel 12 into a gas and a liquid, and the separated gas is transferred to a gas treatment line 14 connected to the vessel 12, and the liquid is a liquid treatment line 16 ).

또한, 상기 베셀(12)은 베셀(12)의 내부 압력을 검출하는 PT(18)와 연결되어 있고, 상기 PT(18)는 PC(20)와 전기적 신호선(E1)으로 연결되어 있으며, 상기 PC(20)는 가스처리라인(14)으로부터 분기 형태로 연결된 연소라인(22)에 구비되어 있는 PCV(24)와 전기적 신호선(E2)으로 연결되어 있다. In addition, the vessel 12 is connected to the PT 18 that detects the internal pressure of the vessel 12, and the PT 18 is connected to the PC 20 by an electrical signal line E1, and the PC. (20) is a PCV (24) provided in the combustion line (22) connected in a branch form from the gas treatment line (14) and is connected to an electrical signal line (E2).

또한, 상기 베셀(12)에는 수위를 검출하는 LT(26)가 구비되어 있고, LT(26)는 LC(28)와 전기적 신호선(E3)으로 연결되어 있으며, 상기 LC(28)는 액체처리라인(16)에 구비된 LCV(30)와 전기적 신호선(E4)으로 연결된다. 참고로, 수위에 따른 LCV(30)의 동작 제어는 앞서 설명된 배경기술과 동일하므로 중복설명을 피하고자 생략한다.In addition, the vessel 12 is equipped with an LT 26 for detecting the water level, the LT 26 is connected to an LC 28 and an electrical signal line E3, and the LC 28 is a liquid processing line. It is connected to the LCV (30) provided in (16) and an electrical signal line (E4). For reference, the operation control of the LCV 30 according to the water level is the same as the background technology described above, and thus is omitted to avoid overlapping description.

따라서, 상기 PT(18)에서 검출된 압력 수치에 따라 가스처리라인(14)으로부터 분기된 연소라인(22)의 PCV(24)에 대한 동작이 제어된다. 예를 들면, 상기 베셀(12)의 내부 압력 증가가 PC(20)에 사전 입력된 운전 압력 설정 범위 값 이상, 즉 오버 압력인 경우, PCV(24)를 개방하여 가스처리라인(14)으로 흐르는 가스의 일부를 연소라인(22)으로 이송 및 연소시킴으로써 베셀(12)의 내부 압력을 해소하고 있다.Accordingly, the operation of the combustion line 22 branched from the gas treatment line 14 to the PCV 24 is controlled according to the pressure value detected by the PT 18. For example, if the increase in the internal pressure of the vessel 12 is greater than or equal to the operating pressure setting range previously input to the PC 20, that is, over pressure, the PCV 24 is opened to flow to the gas treatment line 14 By transferring and combusting a part of the gas to the combustion line 22, the internal pressure of the vessel 12 is relieved.

위와 같은 원유생산시스템의 운전 설정 조건에서 특히, 운전 압력 설정 범위 값 이상을 형성하는 오버 압력의 경우, 예를 들어 압력 제어에 관여하는 PCV(24)의 동작 응답이 빠르게 이루어질 수 있도록 게인 값을 설정한 제1 PID(40) 제어를 통해 압력 제어가 빠르게 이루어지도록 함으로써 운전 압력이 시스템의 최대설계 압력 혹은 시스템의 비상정지가 요구되는 압력 설정 값을 초과하기 전에 가스처리라인(14)으로 흐르는 가스의 일부를 연소라인(22)으로 이송 및 연소시켜 그에 따라 시스템의 운전 안정화가 신속히 이루어질 수 있도록 제어한다.In the operation setting conditions of the crude oil production system as described above, in particular, in the case of over pressure forming a value greater than the operating pressure setting range, for example, a gain value is set so that the operation response of the PCV 24 involved in pressure control can be quickly achieved. By controlling the pressure through the first PID 40 control, the pressure of the gas flowing into the gas treatment line 14 before the operating pressure exceeds the maximum design pressure of the system or the pressure setting value required for emergency stop of the system A part is transferred to the combustion line 22 and burned, thereby controlling the system to be stabilized quickly.

반대로, 운전 압력 설정 범위 값 이하로 떨어질 경우, 앞서 언급한 동작 응답속도가 제1 PID(40) 응답 속도보다 느리게 제어될 수 있도록 게인 값으로 설정한 제2 PID(50) 제어를 통해 PCV(24)의 동작 응답이 느려지도록 함으로써,운전 압력 설정 범위 값 이하 운전조건에서 빠르게 셋팅 된 PID 게인 값에 따른 과대한 PCV(24) 개도 변경으로 인한 압력의 오르내림에 따른 급변화 및 압력 맥동을 최소화하고 그에 따라 시스템의 운전 안정화가 신속히 이루어질 수 있도록 한 것이다. Conversely, when the operating pressure falls below the set range value, the PCV (24) is controlled through the second PID (50) control set to the gain value so that the aforementioned operation response speed can be controlled slower than the first PID (40) response speed. ) To minimize the sudden change and pressure pulsation due to the rise and fall of pressure due to excessive PCV (24) opening change according to the PID gain value set quickly under the operating pressure setting range value by slowing the operation response of). Accordingly, it is possible to quickly stabilize the operation of the system.

다시 말해, 본 발명에 따른 듀얼 PID 압력 제어를 적용한 원유생산시스템을 사용하게 되면, 운전 압력 설정 범위 값 이상의 경우와 이하의 경우에 대해 각각 해당하는 제1 및 제2 PID(40, 50) 제어 통하여 최적의 압력 제어와 함께 시스템의 안정화를 신속히 이룰 수 있게 된다. In other words, when the crude oil production system to which the dual PID pressure control according to the present invention is applied is used, through the control of the first and second PIDs 40 and 50 respectively corresponding to the case of the operating pressure set range value or more and the following cases, respectively. The system can be stabilized quickly with optimum pressure control.

이상과 같이, 본 발명은 비록 한정된 실시 예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 아니하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재된 특허청구범위의 균등범위 내에서 다양한 수정 및 변형 가능함은 물론이다.As described above, although the present invention has been described by a limited embodiment and drawings, the present invention is not limited by this, and the technical idea of the present invention and the following by a person skilled in the art to which the present invention pertains Of course, various modifications and variations can be made within the scope of the equivalent claims.

10 : 공급라인
12 : 베셀
14 : 가스처리라인
16 : 액체처리라인
18 : PT (Pressure Transmitter)
20 : PC (Pressure Controller)
22 : 연소라인
24 : PCV (Pressure Control Valve)
26 : LT (Level Transmitter)
28 : LC (Level Controller)
30 : LCV (Level Control Valve)
32 : PID
40 : 제1 PID
50 : 제2 PID10: Supply line
12: Vessel
14: gas treatment line
16: Liquid treatment line
18: PT (Pressure Transmitter)
20: PC (Pressure Controller)
22: combustion line
24: PCV (Pressure Control Valve)
26: LT (Level Transmitter)
28: LC (Level Controller)
30: LCV (Level Control Valve)
32: PID
40: first PID
50: second PID

Claims (2)

원유가 공급되는 베셀(12)에 연결되는 가스처리라인(14) 및 액체처리라인(16)과;
상기 베셀(12)의 내부 압력을 검출하도록 베셀(12)과 연결되는 PT(18)와;
상기 PT(18)와 전기적 신호로 연결되는 PC(20)와;
상기 가스처리라인(14)으로부터 분기 형태로 연결된 연소라인(22)에 구비되고 상기 PC(18)와 전기적으로 신호 연결되는 PCV(24)와;
운전 설정 조건에서 PC(20)의 운전 압력 설정 범위 값 이상과 이하에 따라 PCV(24)의 동작에 대한 응답 속도가 서로 다르게 제어되도록 각각 설정한 제1 및 제2 PID(40, 50)를 포함하여 구성되는 것을 특징으로 하는 듀얼 PID 압력 제어를 적용한 원유생산시스템.
A gas treatment line 14 and a liquid treatment line 16 connected to a vessel 12 to which crude oil is supplied;
A PT 18 connected to the vessel 12 to detect the internal pressure of the vessel 12;
A PC 20 connected to the PT 18 by an electrical signal;
A PCV 24 provided in the combustion line 22 connected in a branch form from the gas treatment line 14 and electrically connected to the PC 18;
Includes the first and second PIDs 40 and 50, respectively, set so that the response speed to the operation of the PCV 24 is controlled differently according to the value of the operating pressure setting range of the PC 20 under the operating setting condition and below. A crude oil production system to which dual PID pressure control is applied.
청구항 1에 있어서,
상기 운전 압력 설정 범위 값 이상인 경우, PCV(24)의 동작 응답속도가 빠르게 이루어지도록 셋팅한 제1 PID(40) 제어를 통해 압력 제어가 이루어지도록 하고, 상기 운전 압력 설정 범위 값 이하인 경우, 상기 제1 PID(40) 제어에 따른 PCV(24)의 동작 응답속도 보다 느리게 제어될 수 있도록 셋팅한 제2 PID(50) 제어를 통해 압력 제어가 이루어지도록 한 것을 특징으로 하는 듀얼 PID 압력 제어를 적용한 원유생산시스템.The method according to claim 1,
When it is equal to or greater than the operating pressure setting range value, pressure control is performed through the first PID 40 control set so that the operation response speed of the PCV 24 is rapidly achieved. Crude oil to which dual PID pressure control is applied, characterized in that pressure control is performed through the second PID (50) control set so that the operation response speed of the PCV (24) according to the PID 40 control can be controlled more slowly. Production system.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111764877A (en) * 2020-05-29 2020-10-13 中国海洋石油集团有限公司 Critical rupture pressure-changing blockage removal process method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11235069A (en) 1998-02-09 1999-08-27 Nec Corp Speed controller of motor-driven blind
JP2009015514A (en) 2007-07-03 2009-01-22 Nippon Petroleum Refining Co Ltd Pid control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11235069A (en) 1998-02-09 1999-08-27 Nec Corp Speed controller of motor-driven blind
JP2009015514A (en) 2007-07-03 2009-01-22 Nippon Petroleum Refining Co Ltd Pid control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111764877A (en) * 2020-05-29 2020-10-13 中国海洋石油集团有限公司 Critical rupture pressure-changing blockage removal process method

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